period this should be shown in white lower-case letters on a blue rectangular plate below the sign. If more than one of these messages is carried they should be on a single plate (paragraph 85(iv)). Where restriction of waiting is in force on different sides of the street on alternate days this should be indicated by a flap to the rectangular plate. Flaps should be secured in position to avoid interference (paragraph 85(vi)).
Where a time limit is imposed in a designated parking place it should be indicated on a plate below the informatory P sign. This plate should also show any restrictions imposed upon types of vehicles which may use the parking place and any conditions upon use of lights at night. The plate should not attempt to reproduce all the conditions of the parking place Order (paragraph 85(vii)).
Signs are recommended to indicate points of entry to and exit from a parking meter zone (paragraph 85(viii)).
Places where waiting is permitted for one hour or more should be designated parking places and thus indicated by the P sign, the prohibitory sign being confined to places where waiting is restricted to periods of less than an hour (paragraph 85).
Departments should urge local authorities to consider how waiting restrictions can be made simpler and more uniform and whether alternating waiting arrangements can be diminished or abolished (paragraph 86).
Waiting restriction signs should be placed at right angles to the street (paragraph 87(i)) . Their message should be extended by yellow carriageway markings. The form of these should be decided in the light of current experiments (paragraph 87(ii)). The permitted distance between waiting restriction signs should be extended to 300 feet, subject to repeaters being placed near junctions. Intervals between peak-hour clearway signs should be 400 feet and rural clearway signs one mile, subject to repeaters being placed near junctions (paragraph 87(iii)).
Terminal waiting restriction signs should have beneath them a black arrow on a white plate pointing in the direction in which the restriction operates (paragraph 87(iv)). These arrows and the plates bearing details of restrictions should be parallel with the street (paragraph 87(v)).
The posts on which waiting and stopping restriction signs are mounted should be painted grey (paragraph 87(vi)). When possible these signs should be mounted on existing structures (paragraph 87(vii)) .
B. Warning Signs
Warning signs should be distinguished by a red triangle containing a black symbol on a white ground (paragraph 88).
Junctions
The six symbols now prescribed in Regulations should continue to be used to give warning of junctions, but they should be placed within red triangles in Protocol form.
The two Protocol junction warning signs shown in Appendix III should not be used.
Use of the recommended map type advance direction sign, also the Stop sign and the Give way sign will often make the addition of junction warning signs unnecessary but their use will be determined by local conditions (paragraph 89).
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